ATIS - Alliance for Telecommunications Industry Solutions
Scope
The scope of this document is the test vectors for ANSI T1.303-1989 24-@ 32- and 40- kbit/s ADPCM algorithms. Purpose Previously available test vectors covered the three fixed bit rates (24 kbit/s@ 32 kbit/s@ 40 kbit/s) for both the A-law and the ??law operations. Both reset and homing vectors were available for 32 kbit/s ADPCM@ but only reset vectors were available for 24- and 40- kbit/s ADPCM. Cross-vectors (A ?? ?? ???? A) were not provided and the PCM inputs for the A-law did not have their even bits inverted.